krasia becomes practically impos- sible when the evaluative judgements of the reasoning part are sufficiently authoritative. This happens when one has undergone the philosopher’s education. In the optimal case, the spirited part is habituated to listening to reason and is activated only by things which the reasoning part regards as worthy of emotional response, and the appetitive part is wholly satisfied with the limited role left to it (4.443c–444a; 9.589a–590d). But even a less perfect soul is not akratic if the controlling power of the reasoning part is stronger than the spontaneous suggestions of the lower parts (9.571b). 9